Remarks: Clip 1: UP 844 leads the southbound Frontier Days Train as it screams through Nunn, Co on its way back to Denver.
Clip 2: UP 844 charges up the hill completely under its own power (with the 6936 along for the ride) on the last leg of its Denver-Cheyenne trip. The train will layover in Cheyenne for the better part of the day before heading back to Denver at 5:30 p.m.